[logback-dev] [JIRA] Commented: (LBCLASSIC-183) Tomcat reports SEVERE ThreadLocal issues upon shutdown

[Ceki Gulcu (JIRA)]

    [ http://jira.qos.ch/browse/LBCLASSIC-183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11506#action_11506 ] 

Ceki Gulcu commented on LBCLASSIC-183:
--------------------------------------

Thank you for this report Anthony.

I was unaware of this problem and will look into it.

> Tomcat reports SEVERE ThreadLocal issues upon shutdown
> ------------------------------------------------------
>
>                 Key: LBCLASSIC-183
>                 URL: http://jira.qos.ch/browse/LBCLASSIC-183
>             Project: logback-classic
>          Issue Type: Bug
>    Affects Versions: 0.9.18
>         Environment: Tomcat 6.0.24, JDK 6, Windows or Solaris
>            Reporter: Anthony Whitford
>            Assignee: Logback dev list
>
> I have a webapp that uses Logback, deployed on a Tomcat instance.  Upon shutdown, Tomcat reports this and doesn't completely shut down:
> SEVERE: A web application created a ThreadLocal with key of type [org.slf4j.impl.CopyOnInheritThreadLocal] (value [org.slf4j.impl.CopyOnInheritThreadLocal at 1bb35
> b]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
> Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
> SEVERE: A web application created a ThreadLocal with key of type [null] (value [ch.qos.logback.core.UnsynchronizedAppenderBase$1 at 10e2558]) and a value of type [java.lang.Boolean] (value [false]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
> Is LogBack leaking resources?

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